diff --git a/wp-admin/options.php b/wp-admin/options.php
index b779b2049a..6a17d9adb2 100644
--- a/wp-admin/options.php
+++ b/wp-admin/options.php
@@ -70,6 +70,8 @@ case 'update':
     if ($any_changed) {
 			// If siteurl or home changed, reset cookies.
 			if ( get_settings('siteurl') != $old_siteurl || get_settings('home') != $old_home ) {
+				// If home changed, write rewrite rules to new location.
+				save_mod_rewrite_rules();
 				// Get currently logged in user and password.
 				get_currentuserinfo();
 				// Clear cookies for old paths.